Certified Application Developer CAD Book

A module is the functionality within an application menu such as opening a page in the content frame or a separate tab or window. For example, Open is a module under the Problem application menu that opens a list of problem records. Modules are the second level navigation options for applications. Reference: Modules | ServiceNow Tutorials

The Create Branch operation is available from both Studio and the Git Repository. This operation allows you to create a new branch from an existing branch in your Git repository. You can use branches to work on different features or versions of your application without affecting the main branch. Reference: [Create a branch]